Calculators that respond to their environment. All of the financial calculators here at CalcXML have been designed following responsive web design principles, adapting to the size of the screen on which they are displayed. From the smallest cell phone to the largest desktop monitor, all of your web visitors will be happy with these financial calculators.
Dichlorodiphenyltrichloroethane (DDT) Dichlorodiphenyltrichloroethane (DDT) is an insecticide used in agriculture. The United States banned the use of DDT in 1972, but some countries still use the chemical.
DDT Banned Worldwide. As evidence of the harm DDT was causing began to grow, countries worldwide started to ban the chemical or restrict its use. By 1970, Hungary, Norway and Sweden had banned DDT, and despite overwhelming pressure from the U.S. chemical industry, the production and use of DDT were banned in the United States in 1972.